VULNERABILITY INTELLIGENCE

CVE-2021-24964

CVSS score6.1 MEDIUM
EPSS probability1.24%
CISA KEVNot currently listed
Published2022-01-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The LiteSpeed Cache WordPress plugin before 4.4.4 does not properly verify that requests are coming from QUIC.cloud servers, allowing attackers to make requests to certain endpoints by using a specific X-Forwarded-For header value. In addition, one of the endpoint could be used to set CSS code if a setting is enabled, which will then be output in some pages without being sanitised and escaped. Combining those two issues, an unauthenticated attacker could put Cross-Site Scripting payloads in pages visited by users.

Weakness classification

  • contact@wpscan.com: CWE-79
  • nvd@nist.gov: CWE-79

Primary references